Daisy look-alike (5)
I believe the answer is:
aster
'daisy look-alike' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aster that I've seen before include "Plant of Michaelmas daisy family" , "eg Michaelmas daisy" , "Tears about bright flower" , "Plant like a Michaelmas daisy" , "Daisy-like plant" .)